Key points are not available for this paper at this time.
The interaction of nearly degenerate TEM₀₁ and TEM₁₀ modes of a laser is investigated. When the difference between the oscillation frequencies of the two modes is decreased, a transition occurs from a nearly sinusoidal "mode-beating" intensity modulation via periodic and irregular pulsing to frequency-locked steady-state emission in a TEM₀₁^* hybrid mode. The formation of this hybrid mode by frequency locking is a simple example of the recently predicted emergence of stable transverse patterns in nonlinear optical resonators, brought about by frequency locking of near-degenerate, competing transverse modes.
Chr. Tamm (Thu,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: